Solid material comminution or disintegration – Apparatus – With comminuting member cleaner or scraper
Reexamination Certificate
2007-07-10
2007-07-10
Rosenbaum, Mark (Department: 3725)
Solid material comminution or disintegration
Apparatus
With comminuting member cleaner or scraper
C241S169200, C241S236000
Reexamination Certificate
active
11043419
ABSTRACT:
A hand-held device for shredding paper comprising a pair of rotary cutting wheels disposed within a housing between an inlet slot and an outlet slot. A motor is positioned in the handle to drive the cutting wheels through a gear assembly. One wheel serves as a drive wheel, which is coupled directly to the gear assembly, and the other wheel serves as an idler, driven from a spur gear attached to the drive wheel at the end opposite a gear case. Paper sheets are fed into the inlet slot and pulled between the wheels. Wheels are comprised of a stack of alternating discs of a large and small radius, and staggered so as to allow the two wheels to be interleaved while rotating in opposite (clockwise and counterclockwise) directions and maintain clearance. Large discs have a frictional edge to grab and feed the paper into the intersection of the wheels, tearing the paper into strips and forcing the strips into the outlet slot. A battery compartment in the handle contains the batteries for energizing the motor.
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Brown Patrick W.
Lammers Anthony J.
Nottingham John R.
Plantz Jeffrey Scott
Spirk John W.
InnoDesk Business Tools, Inc.
Keevican Weiss Bauerle & Hirsch LLC
Rosenbaum Mark
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